ISO7637 Summary and Resources

To summarize, we will cover what we've covered and point out some additional resources available to our field teams and those looking to provide transient protection solutions. The questions that must be asked-- is this product part of an ISO 7637 system? Is it better to not blow a fuse in response to a transient? What is the operating voltage range, and perhaps more importantly, V ABS_MAX? Is inrush control required? Is load switching required?
These are all questions that you can use to perhaps get your customers thinking in ways that they haven't thought before or features that might be useful which hadn't previously been considered. Further, if there is an overvoltage, what should the response be? Do want to shut off, or can we clamp that surge? And if we're going to clamp it, what is the highest voltage we can clamp it at?
Are there negative transient requirements? What is minus V IN_MAX? And is this product going to be for multiple end customers or specifically for a single customer? And this may surprise you-- it's worth asking, is Q100 qualification required?
As we summarize the automotive transient solutions from TI, we want to remember a few things. Many systems demand low IQ to reduce or prevent battery drain. Reverse current control is often needed to keep the energy at a load, particularly during cold crank voltage [INAUDIBLE]. VI has many Q100 hundreds solutions available today, both controllers and integrated FET devices. And there are multiple groups within TI working on new automotive products. Don't be scared to ask.
Other resources available-- we've got TI Designs. There are a number of very good designs on there for automotive. Some are just particularly aimed at front end protection. We've got contacts within the various groups, protection and O-ring, Wide V IN and smart diode controller, and the Smart High Side Switch Team. And in the e2e support forum, there are a number of forums that can provide you quick and accurate answers to questions regarding these solutions.
Within TI designs, we've got at least these four for front end protection for automotive applications. And even if you're not going to use them, it's good to take a quick look, be aware of what's there, and be able to show the system designers so they can see what's available and get them thinking beyond TVS and a fuse.
To summarize, ISO 7637 drives many design decisions, and there are a lot of derivative corporate specs. Opportunities are growing, because the amount of silicon going into automobiles is just going up. That means there are more opportunities for protection. And asking the right questions helps to find those opportunities.
And they don't all have the same requirements. Some may need just reverse hook-up protection. Some may need particular fault responses and reverse voltage protection. And often, they do need the reverse current control to keep the energy at the load. And TI has a number of solutions available today, both controllers, internal FET, and wide V IN DC to DC.
Thank you for your time. I hope you've found this helpful. 总而言之，我们将讨论 我们已讨论过的内容， 并指出其他一些 可供我们的现场 团队和期望提供 瞬态保护解决方案的 人使用的资源。 必须要问的 问题 -- 该产品是不是 ISO 7637 系统的一部分？ 不熔断保险丝以响应 瞬态是不是更好一些？ 工作电压范围是怎样的， 或许更重要的是，V ABS_MAX 是怎样的？ 是否需要浪涌控制？ 是否需要负载开关？ 这些是您或许 可以用于使客户 以前所未有的方式 进行思考的所有问题， 或者以前未 考虑过的 可能有用的特性。 更进一步，如果 存在过压，响应 应该是怎样的？ 我们是否需要关闭，或者 我们是否能够钳制该浪涌？ 如果我们要 钳制它，我们 最高可以将其 钳制在多高的电压？ 是否存在 负瞬态要求？ 负 V IN_MAX 是什么？ 该产品将用于 多个客户还是 专门用于 单个用户？ 这可能会让您感到 吃惊 -- 值得问这个问题， 是否需要 Q100 资格？ 在我们对 TI 提供的汽车 瞬态解决方案进行总结时， 我们不要 忘记一些事情。 许多系统要求低 IQ 以降低或防止蓄电池 消耗。 通常需要反向 电流控制，以便 保持负载上 具有能量， 尤其是在冷启动 电压 [听不清] 期间。 TI 现在可提供 许多 Q100 解决方案， 其中包括控制器 和集成 FET 器件。 TI 内部有多个 致力于开发新的 汽车产品的组。 尽管问，别害怕。 其他可用资源 -- 我们拥有 TI 参考设计。 那里有大量 很好的用于 汽车的设计。 有些专门针对 前端保护。 我们在各个组中 都有联系人， 保护和 O 型环、宽 V IN 和智能二极管控制器 以及智能高侧 开关团队。 在 e2e 支持 论坛中， 有大量的论坛， 可为您提供 有关这些解决方案 问题的快速且准确的 回答。 在 TI 参考设计中， 我们至少有这 四种针对用于 汽车应用的前端 保护的参考设计。 即使您不打算 使用它们，也最好 快速浏览一下， 知道有什么东西， 从而能够为系统 设计人员进行展示， 这样他们就能够知道有哪些可用的 东西，使他们能够思考 TVS 和保险丝 以外的东西。 总而言之，ISO 7637 推动了许多设计决策， 并且有大量的 衍生企业规范。 机会越来越多， 因为应用到 汽车中的器件的 数量正在增长。 这意味着对于保护 有更多的机会。 提出正确的 问题有助于 发现这些机会。 它们并非都具有 相同的要求。 有些可能仅需要 反结合保护。 有些可能需要 特定的故障响应 和反向电压保护。 它们通常需要反向 电流控制，以便 保持负载上具有能量。 TI 现在可提供 大量的解决方案， 其中包括控制器、集成 FET 和 宽 V IN 直流到直流转换器。 谢谢观看。